Copper Ore Crushing Plant in Chile set up a local branch office in Chile, which is one of the most important sales markets of in South America. Each year, a large number of clients purchased crushing and powder-making machineries produced by , and we have won trust from our clients because of the high-quality products and after-sales ...
2009 and treats a sulphide copper-gold ore to produce gold in form of doré bars and a concentrate containing gold, copper and silver. The BGM comminution circuit includes a primary crushing stage with a gyratory crusher and a two grinding circuits using a Semi-Autogenous Grinding (SAG) mill and a ball mill. ... the Bond work index obtained for ...
Comminution Circuits – Featured Projects ANTAPACCAY. Southern Peru, 2009-2013 (108,000 tpd – 80,000 tpd) Predictions of mill throughput from a porphyry copper open pit based on comminution test results of 22 composites and the available motor power of a "Standard" SAG Mill/Ball Mill circuit consisting of one 40 ft dia. x 22 ft EGL SAG Mill rated at 24 MW GMD and …
Development of a geometallurgical model for a copper concentrator. From the outset the project team planned to use a tollgating approach and develop .... determination of the crusher work index, rod and ball mill. Bond Work indices ... other copper minerals, particularly malachite and chrysocolla, in the flotation tailing .... work and locked ...
GMSG GUIDELINE DETERMINING THE BOND. "Crushing and Grinding Calculations", Bond, F.C., Allis-Chalmers Publication No. 07R9235D, reprinted from British Chemical Engineering, Part l, June, 1961, and Part ll, August 1961, with additions and revisions, April, 1962. "The Tools of Power Power The Bond Work Index, A Tool to Measure.
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2018-1-12 · Bond work index testing conducted in these test programs confirmed the sample was relatively hard and comparable to many mineral ores. The sample was pre-screened using a "Russel" vibrating sieve with a 10 mm aperture size, and the oversize was stage-crushed using a laboratory jaw crusher to pass 10 mm.
Bond Impact Crushing Work Index Procedure and Table of. Sizing a crusher can be done reliably calculated thanks to the Impact/Crushing Work Index and the testwork research done by Fred Chester Bond and his 1952 paper. According to Bond Third Theory of Comminution, the work/energy input is proportional to t. View Details Send Enquiry
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Crushing Work Index test that determine the bond crushing work index that along with the Bond''s Third Theory of ... double roll coal crusher - PAKUYA Manufacturers, … Model Number: 2PG Type: Roller Crusher Condition: New Capacity(t/h): 5-100 roll crusher JINSHIBAO roll crushers can be referred to as compression –type crushers.
2021-12-6 · Used by 18 out of 20 of the largest mining companies in the world, the SMC Test helped Barrick Gold achieve a 20% net energy improvement and a reduction in CO2 emissions by 43,000 t, a cost saving of $5 million/y in energy costs, SMC Testing says. The comminution circuit throughput also increased annual gold production by 60,000 oz.
ICS: Impact of the crushing parameter m: Mass of the particle ̅: Mean mass of the set of particles m d: mass of the drop weight MPa: Mega Pascals M-W i: Mergan Work Index P: Power draw P 80: 80% of the product passing PCCL: pebble crusher circulating load PLI: Point Load Test RQD: Rock Quality Designation SAG: Semi-Autogenous Grinding
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2021-11-25 · Minera Los Pelambres (MLP) is located in Chile and is the flagship mine of Antofagasta PLC, one of the top ten copper producing companies in the world. Its forecast production for MLP for 2019 is 360–370k tonnes of payable copper, 9.5–10.5k tonnes of molybdenum and 50–60,000 ounces of gold.
2018-2-20 · Lima and SGS Minerals Chile. The comminution testwork data is appended and summarised in Figure 1. The relationship between ore competency, as measured by the Drop Weight index (DWi), and ore hardness as measured by the Bond ball mill work index is reasonably consistent with the main outliers being mixed ore samples.
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2021-12-10 · Metallurgists & Mineral Processing Engineers. For its extensive practical experience, 911 Metallurgist has a clear understanding of what successful mineral processing engineering is and how to go about achieving it. Your goal is the production of a material that is marketable and returns you and your investors sustainable revenues.
The induced microcracks created by blasting have strong correlation with the blast intensity (Michaux and Hocking, 2010;Murr et al., 2015) by reducing …
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where: WiC is the Bond crushing work index, unitless P80 is the SAG hydrocyclone overflow 80% passing size, µm F80 is the milling circuit feed 80% passing size, µm, WiRM is the Bond rod mill work index, unitless WiBM is the Bond ball mill work index, unitless EF4 and EF5 are the Rowland efficiency factors for oversized feed and fine grinding.
A Bond''s Ball Mill Work Index (BWi) was determined for the supplied sample at a closed size of 100 mesh (150 microns). The work index of the sample was 15.55 kWh/st. The results indicate that the sample would be considered hard. A Bond Abrasion Index (Ai) was determined for the supplied sample. The abrasion index of the sample was 0.798.
2018-8-29 · Copper ore Iron ore Bond Impact Work Index Bond Abrasion Index 2017 mm Parameter Primary Sizer Secondary Sizer Standard XfiTREME Standard XfiTREME Feed size [mm] 1,000 - 2,000 1,200 - 2,500 200 - 800 300 - 800 Product size [mm] 200 - 350 300 - 400 30 - …
2013-1-1 · To calculate Bond rod-mill work indices, the four samples were screened and the particle size distributions plotted in Fig. 2.The plot was used to find F 80 of the samples for calculations. Fig. 3, Fig. 4 show the grinding kinetics of Pb, Cu, Fe, and Mn ores in the Bond rod-mill in different test-sieves. The slopes of all lines in the figures are equal to the k value of Eq.
2013-5-22 · impact crushing work index – Crusher South Africa CASE STUDIES ON THE EFFECT OF SAMPLE DIMENSIONS ON … parameter, the Bond low energy impact crushing work index (WiC). The sample feed size to the WiC test is …
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2018-2-20 · 2 is a large copper producer. The comminution circuit at Mine 1 consists of a partial pre-crushing circuit before an SABC circuit followed by three ball mills, whereas Mine 2 is a traditional SABC circuit consisting of a single SAG mill closed with a recycle crusher and followed by two ball mills. The energy curve methodology has been used to
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For mineral processing project, after blasting, crushing and screening system is always the first stage to reduce the big raw ore lumps to proper small particle size for following mill grinding system. Normally to reduce the big ore lumps to small …
2016-1-1 · Some dry autogenous mills operating in Canada are 8.5 m in diameter and 1.5 m in length. These are known as Aerofall mills. The Cadia Hill (Australia) wet SAG mill is 12.2 m in diameter with a 20 MW motor and in 2004 was the largest diameter mill in operation in the world.
2021-12-5 · The Bond work index is a measure of ore resistance to crushing and grinding and is determined using the Bond grindability test. Its value constitutes ore characteristic and is used for industrial ...